B-type natriuretic peptide in reversible myocardial ischaemia
2006
Background: Coronary heart disease is associated with increased B-type natriuretic peptides (BNPs), and, although controversial, may cause exaggerated exercise-induced BNP secretion. We investigated BNP in relation to reversible myocardial ischaemia. Materials and methods: Serum N-terminal proBNP (NT-proBNP) was measured before and after an exercise electrocardiogram test (ETT) in 14 patients with and 45 patients without exercise-induced myocardial ischaemia. Statistical analysis was carried out on logarithmically transformed data. Results, however, are pre-transformed data. Results: NT-proBNP increased with exercise both in ETT-positive patients (mean (SD) 71.4 (41.2) v 76.8 (44.0) ng/l; p v 60.1 (69.0) ng/l; p Conclusion: Serum NT-proBNP concentrations are higher in patients with exercise-induced myocardial ischaemia than in those without. Exercise-induced electrocardiographic myocardial ischaemia, however, is not associated with exaggerated BNP secretion.
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